<div>
Just to clarify, the intention is to take C code and recompile to run on WIN 7 or WIN 10. &nbsp;Unfortunately, this is not a one time use. &nbsp;I will be needing to use this a couple more times in the future.
</div>


<div>
Okay, so have you tried using Visual studio 2015 (the community edition is free and can be used to create software for distribution without any licencing concerns) as I suggested?
</div>


<div>
Greetings all... any suggestions on how to proceed greatly welcomed.<br />
<br />
The good news was that Visual Studio 15 does allow importing of older C code.<br />
<br />
Now for the bad news:<br />
<br />
I took a look at the obj file and found out that it was compiled using TC86 Borland Turbo C++ 3.00.<br />
<br />
The bad news is that Visual Studio 15 apparently has no clue what to do with the C preprocessor directives. <br />
<br />
The following does not seem to have meaning even though I thought these were common across platforms:<br />
#include&lt;stdio.h&gt;<br />
#include&lt;conio.h&gt;<br />
#include&lt;stdlib.h&gt;<br />
#include&lt;string.h&gt;<br />
#include&lt;ctype.h&gt;<br />
#include&lt;time.h&gt;<br />
<br />
Visual Studio 15 doesn't know where to look to get these.<br />
<br />
As a result, when using a line like: <br />
now = time(NULL) ... A error on the NULL appears.<br />
<br />
I took a look at trying to create a console program. &nbsp;VS15 immediately forces you into the C++ CLASS model. &nbsp;There do not seem to be an option in using simple basic C from days of old.<br />
<br />
Any suggestions on how to recompile a C code into Windows 7??<br />
<br />
Are there any current era C windows C (not C++) compilers on the market that run under Windows 7?<br />
<br />
Thanks
</div>


<div>
<div class="content wysiwyg-content">
Greetings all,<br />
<br />
Due to a contract restart, I have to update, compile and run a DOS C program on WIndows 7 computers. &nbsp;<br />
<br />
I have the C code in a text file. &nbsp;When I have tried running the utility under compatibility mode, I get the following error: &quot;This version of the file is not compatible with the version of Windows you're running. &nbsp;Check your computer's system information to see whether you need an x86 (32-bit) or x64 (64-bit) version of the program, and then contact the software publisher.&quot;<br />
<br />
Is there a simple way to copy and paste the C code into Visual C++ 2015 and target the compilation to WIn 7 which acts like DOS?<br />
<br />
The DOS utility generates the burn file for PROMs and also the documentation files for the PROMs.<br />
<br />
I would imaging that the execution of the utility under Win 7 would simply open a Command Prompt like window which would act like a DOS screen. &nbsp;There should be no real issue in writing the documentation files as they are simply text files.<br />
<br />
Any suggestions greatly appreciated.<br />
<br />
Mark
</div>
</div>


Greetings all,

Due to a contract restart, I have to update, compile and run a DOS C program on WIndows 7 computers.  

I have the C code in a text file.  When I have tried running the utility under compatibility mode, I get the following error: "This version of the file is not compatible with the version of Windows you're running.  Check your computer's system information to see whether you need an x86 (32-bit) or x64 (64-bit) version of the program, and then contact the software publisher."

Is there a simple way to copy and paste the C code into Visual C++ 2015 and target the compilation to WIn 7 which acts like DOS?

The DOS utility generates the burn file for PROMs and also the documentation files for the PROMs.

I would imaging that the execution of the utility under Win 7 would simply open a Command Prompt like window which would act like a DOS screen.  There should be no real issue in writing the documentation files as they are simply text files.

Any suggestions greatly appreciated.

Mark

Recompile a DOS C program to MS Visual C++ for Windows 7 (or 10)

C is a general-purpose, imperative computer programming language, supporting structured programming, lexical variable scope and recursion, while a static type system prevents many unintended operations. By design, C provides constructs that map efficiently to typical machine instructions, so it has found lasting use in applications that had formerly been coded in assembly language, including operating systems as well as various application software for computers ranging from supercomputers to embedded systems. It is distinct from C++ (which has its roots in C) and C#, and many later languages have borrowed directly or indirectly from C.

The Microsoft Legacy Operating System topic includes legacy versions of Microsoft operating systems prior to Windows 2000: All versions of MS-DOS and other versions developed for specific manufacturers and Windows 3/3.1, Windows 95 and Windows 98, plus any other Windows-related versions, and Windows Mobile.

Microsoft Legacy OS

C++ is an intermediate-level general-purpose programming language, not to be confused with C or C#. It was developed as a set of extensions to the C programming language to improve type-safety and add support for automatic resource management, object-orientation, generic programming, and exception handling, among other features.